Ken Hasegawa
UFC Debut
Record
Streak
W1
Age
Date of birth
- Fighting out of
- Yokohama, Kanagawa
- Born
- Japan
- Camp
- Freelance
- Weight class
- Heavyweight
- Height
- 5'11" · 180 cm
Before the UFC
Ken Hasegawa makes their UFC debut
Our striking, grappling, and schedule metrics are measured from UFC fights, so they come online after this bout. Here is the career they bring in — and how live the opposition has been.
Pre-UFC opposition
ModerateOpponents' combined record
310-233-14
.571 win rate
Winning-record opponents
12 of 20
carried winning pro records
Pro bouts faced
25
20 opponents with records on file
A descriptive read of the non-UFC slate from opponents’ full career pro records — not a UFC-grade Schedule Score.
UFC fight history
No UFC bouts on record yet.
Outside the UFC
across 25 bouts · 7 promotions · wins by 7 KO · 4 sub · 7 decDeep · ONE · Kingdom Ehrgeiz · Heat / AFC · RIZIN +2
| Res | Opponent | Outcome | Finish | Rd | Time | Promotion | Date |
|---|---|---|---|---|---|---|---|
| W | Black Tiger | KO/TKO | Punches | R1 | 0:49 | Deep | May 24, 2026 |
| L | Decision | Majority | R3 | 2:28 | Heat / AFC | May 24, 2025 | |
| L | Ryo Sakai15-15 | Decision | Majority | R2 | 3:12 | Deep | Nov 4, 2024 |
| W | Lawdlain Saint-Ilme | Decision | Unanimous | R3 | 5:00 | Deep | Aug 31, 2024 |
| L | Aung La N Sang31-15 | KO/TKO | Punches | R2 | 4:41 | ONE | Mar 31, 2019 |
| L | Aung La N Sang31-15 | KO/TKO | Punch | R5 | 3:13 | ONE | Jun 29, 2018 |
| W | Genpei Hayashi13-13-1 | Submission | Arm-Triangle Choke | R1 | 3:09 | Deep | Feb 24, 2018 |
| L | Ryuichiro Sumimura27-8-1 | Decision | Majority | R1 | 3:48 | Deep | Jul 15, 2017 |
| W | Yoshiyuki Katahira8-6-2 | KO/TKO | Body Kick | R1 | 4:13 | Deep | Mar 18, 2017 |
| W | Yoichiro Sato25-16-3 | Decision | Split | R3 | 5:00 | Deep | Oct 18, 2016 |
| W | KO/TKO | Punch | R1 | 2:04 | Deep | Aug 27, 2016 | |
| L | Brennan Ward17-9 | Submission | Rear-Naked Choke | R2 | 1:54 | RIZIN | Dec 31, 2015 |
| W | Ryuta Sakurai30-28-6 | Submission | Keylock | R1 | 4:12 | Deep | Feb 28, 2015 |
| W | Matt Thompson19-11 | Decision | Unanimous | R3 | 5:00 | Titan FC 31 | Oct 31, 2014 |
| W | Kazuhiro Nakamura21-13 | Decision | Split | R3 | 5:00 | Deep | Mar 22, 2014 |
| D | Jacek Czajczynski8-10-1 | Draw | — | R2 | 5:00 | Real | Oct 20, 2013 |
| W | Hirohide Fujinuma | KO/TKO | Stomps | R1 | 4:20 | Deep | Aug 25, 2013 |
| W | Seigo Mizuguchi18-27 | Decision | Unanimous | R2 | 5:00 | Deep | Feb 16, 2013 |
| W | Peter Tornow3-2 | Decision | Unanimous | R2 | 5:00 | Deep | Dec 8, 2012 |
| W | Hiromichi Kobayashi | KO/TKO | Punches | R1 | 1:21 | Deep | Aug 18, 2012 |
| W | Seigo Mizuguchi18-27 | Decision | Unanimous | R2 | 5:00 | Deep | Oct 29, 2011 |
| W | Shogo Sudo0-2 | KO/TKO | Head Kick | R1 | 0:30 | Kingdom Ehrgeiz | Jul 24, 2011 |
| W | Mamoru Nakamura1-6 | KO/TKO | Punches | R1 | 1:09 | Deep | Jun 5, 2011 |
| W | Noriaki Oshida | Submission | Hammerlock | R1 | 1:15 | Deep | Feb 25, 2011 |
| W | Takahiro Ugajin0-1 | Submission | Armbar | R1 | 0:44 | Kingdom Ehrgeiz | Nov 23, 2010 |
Non-UFC bouts (regional/other promotions) — shown for context only, excluded from Schedule Score, striking/grappling rates, and every UFC-scoped metric.